kernel-packages team mailing list archive

[AceLan Kao <1275973@xxxxxxxxxxxxxxxxxx>]

Gletscher, I built a new kernel for bug 1305522, and I think it might be related to your issue.
Could you try this kernel and see if it helps?
Thanks.
http://people.canonical.com/~acelan/bugs/lp1305522/20140515/

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https://bugs.launchpad.net/bugs/1275973

Title:
  Dell XPS 13 (haswell) touchscreen works only after suspend-wakeup
  cycle on BATTERY (no AC)

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  The touchscreen (ID 06cb:0af8 Synaptics, Inc. ) on the Dell XPS 13
  only works after the computer has been:

  1. Unplugged from AC so it runs on battery
  2. Suspended to Ram
  3. Woken up from Ram

  it will only work on battery, if plugged into AC the touch screen will
  not work even after the suspend-wakeup cycle.

  On login I get the notice that no touchpad has been found and I cannot
  find and configure a touchpad in the settings (for multitouch,
  scrolling etc), is the touchscreen and touchpad the same device as far
  as the OS is concerned?

  Ubuntu 3.11.0-15.25-generic 3.11.10
  ---
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  geni       1923 F.... pulseaudio
   /dev/snd/pcmC1D0p:   geni       1923 F...m pulseaudio
   /dev/snd/controlC0:  geni       1923 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  HibernationDevice: RESUME=UUID=6c71e19c-2a82-49d5-8aa3-641cf3e5d7b0
  InstallationDate: Installed on 2014-01-17 (19 days ago)
  InstallationMedia: Kubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Dell Inc. XPS13 9333
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=19ed683f-b71b-4bf7-9770-9e9c4280d57e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  Tags:  saucy
  Uname: Linux 3.11.0-15-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo
  dmi.bios.date: 12/11/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A02
  dmi.board.name: 0GFTRT
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA02:bd12/11/2013:svnDellInc.:pnXPS139333:pvr:rvnDellInc.:rn0GFTRT:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: XPS13 9333
  dmi.sys.vendor: Dell Inc.

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